In what they say may be a first, researchers at the Mayo Clinic helped keep a man with no pulse alive--and healthy--for 96 minutes using continuous chest compressions, 12 defibrillator shocks, and capnography.

Claims can now be filed against Nvidia for defective graphics processors. This follows more than two years of payouts by Nvidia to PC makers, who have been separately repairing laptops with defective Nvidia graphics chips.